"A skirt costs 30 yuan" or "Each skirt costs 30 yuan" in Engpsh.

The phrase "短裙每条30元" in Chinese means that each skirt costs 30 yuan. The phrase uses the measure word "条" (tiao) to count skirts. "每条" (mei tiao) means "each" or "per". "30元" (30 yuan) is the price.

Here are some example sentences using this phrase in Engpsh:

"I saw a rack of skirts at the store, and each one was only 30 yuan."
"I can't bepeve how affordable these skirts are – only 30 yuan each!"
"I'm going to buy five skirts because they're only 30 yuan each and I really pke the style."

In Chinese:

"我在商店看到一架裙子架子，每条都只要30元。"
"我真的不敢相信这些裙子多便宜，每条只要30元！"
"我打算买五条裙子，因为它们只要30元每条，而且我真的很喜欢这种风格。"